Chapter 34. High Temperature Mechanical Properties of SiAlON Ceramic: Creep Characterization

  1. William Smothers
  1. Ching-Fong Chen1 and
  2. Tze-Jer Chuang2

Published Online: 26 MAR 2008

DOI: 10.1002/9780470320402.ch34

11th Annual Conference on Composites and Advanced Ceramic Materials: Ceramic Engineering and Science Proceedings, Volume 8, Issue 7/8

11th Annual Conference on Composites and Advanced Ceramic Materials: Ceramic Engineering and Science Proceedings, Volume 8, Issue 7/8

How to Cite

Chen, C.-F. and Chuang, T.-J. (2008) High Temperature Mechanical Properties of SiAlON Ceramic: Creep Characterization, in 11th Annual Conference on Composites and Advanced Ceramic Materials: Ceramic Engineering and Science Proceedings, Volume 8, Issue 7/8 (ed W. Smothers), John Wiley & Sons, Inc., Hoboken, NJ, USA. doi: 10.1002/9780470320402.ch34

Author Information

  1. 1

    Dept. of Materials Sci. and Engineering The Univ. of Michigan Ann Arbor, MI 48109

  2. 2

    Ceramics Div., Inst. for Materials Sci. and Engineering National Bureau of Standards Gaithersburg, MD 20899

Publication History

  1. Published Online: 26 MAR 2008
  2. Published Print: 1 JAN 1987

ISBN Information

Print ISBN: 9780470374733

Online ISBN: 9780470320402

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Keywords:

  • SiAlON;
  • correctness;
  • assumption;
  • manipulations;
  • one-dimensional

Summary

Creep resistance of an annealed β10–7G SiAlON at 1170°C was characterized as a function of applied stress. By using a statistical least-square method to minimize the differences between predicted and measured creep rates, different power law creep parameters for simple tension and simple compression were obtained. The agreements between measured migration of neutral axes and theoretical predictions further confirm the estimated values. The results suggest that a high stress exponent of ∼ 14 for tension is possibly due to cavitational damage coupled with underlying materials creep; whereas the stress exponent of ∼ 1 for compression can be attributed solely to linear viscous flow of grain boundary YAG phase.